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route2.mx.cloudflare.netroute1.mx.cloudflare.netroute3.mx.cloudflare.netlove.ns.cloudflare.comkaiser.ns.cloudflare.comv=spf1 include:_spf.mx.cloudflare.net ~all# dotbge.com — the open .bge file format # All crawlers welcome, including AI / generative-search crawlers. User-agent: * Allow: / # AI & generative-search crawlers (explicitly allowed) User-agent: GPTBot Allow: / User-agent: OAI-SearchBot Allow: / User-agent: ChatGPT-User Allow: / User-agent: ClaudeBot Allow: / User-agent: Claude-Web Allow: / User-agent: anthropic-ai Allow: / User-agent: PerplexityBot Allow: / User-agent: Google-Extended Allow: / User-agent: Applebot-Extended Allow: / User-agent: CCBot Allow: / Sitemap: https://dotbge.com/sitemap.xml
# dotbge — The .bge File Format > .bge is an open, self-describing container format for encrypted files. It > pairs RSA-4096-OAEP with AES-256-GCM, splits content into independently > sealed chunks for constant-memory streaming, and supports two encryption > modes: RSA identity sharing and passphrase-based password mode. The format is > fully documented and free to implement, with no licensing fee. ## Specification - [The .bge format](https://dotbge.com/): summary of the format — structure, cryptographic primitives, encryption modes, byte-level header layout, and versioning. - [Specification repository](https://github.com/dotbge/bge-format): the canonical specification document and conformance test vectors. Licensed CC BY 4.0. ## Implementations - [dotbge apps](https://dotbge.app): the official applications implementing the .bge format — available for iPhone and iPad; a macOS menu-bar app is in development. - [bge CLI](https://github.com/dotbge/bge-cli): an official command-line implementation for macOS and Linux. Reads and writes .bge files from the terminal and in scripts; install on macOS with `brew install --cask dotbge/tap/bge`. Docs: https://dotbge.app/cli — drivable by Claude Code and other AI agents: https://dotbge.app/agents - Third-party implementations in any language are welcome; the format is free to implement. ## Key facts - File extension: `.bge` — Magic number: `BGE3` — UTI: `com.dotbge.encrypted` - Payload encryption: AES-256-GCM, chunked - Identity mode: RSA-4096, OAEP-SHA256 - Password mode: PBKDF2-HMAC-SHA512 (1,000,000 iterations default) - A .bge file is self-contained: no server, no account, no network dependency - The format is open and free to implement; the specification is licensed CC BY 4.0 - Current specification version: 3.0 (backward compatible with v1 and v2) - Official implementations: dotbge for iPhone & iPad, and the bge CLI for macOS & Linux (https://github.com/dotbge/bge-cli)